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/**
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tuscany.container.rhino.rhino;
import java.io.ByteArrayInputStream;
import java.util.HashMap;
import java.util.Map;
import javax.xml.namespace.QName;
import org.apache.tuscany.core.wire.InvocationRuntimeException;
import org.apache.tuscany.databinding.sdo.SDOXMLHelper;
import org.apache.xmlbeans.XmlObject;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Scriptable;
import commonj.sdo.helper.TypeHelper;
/**
* DataBinding to convert between Java objects and JavaScript E4X XML objects. This uses SDO to do the conversion between XML and Java so WSDL/XSDs
* need to have be registered with the SDO runtime.
*
* TODO: suport non-wrapped WSDL
*/
public class E4XDataBinding {
private ClassLoader classLoader;
private TypeHelper typeHelper;
private Map<String, QName> function2ElementMap;
private static final boolean IS_WRAPPED = true;
public E4XDataBinding(ClassLoader classLoader, TypeHelper typeHelper) {
this.classLoader = classLoader;
this.typeHelper = typeHelper;
this.function2ElementMap = new HashMap<String, QName>();
}
/**
* Convert E4X XML to Java objects
*
* @param e4xXML
* @return the array of Objects
*/
public Object[] toObjects(Scriptable e4xXML) {
byte[] xmlBytes = e4xXML.toString().getBytes();
Object[] os = SDOXMLHelper.toObjects(classLoader, typeHelper, xmlBytes, IS_WRAPPED);
return os;
}
/**
* Convert request Java objects to XML
*
* @param functionName
* @param os
* @param scope
* @return a JavaScript E4X XML object
*/
public Scriptable toE4X(String functionName, Object[] os, Scriptable scope) {
QName elementQN = function2ElementMap.get(functionName);
byte[] xmlBytes = SDOXMLHelper.toXMLBytes(classLoader, typeHelper, os, elementQN, IS_WRAPPED);
XmlObject xmlObject;
try {
xmlObject = XmlObject.Factory.parse(new ByteArrayInputStream(xmlBytes));
} catch (Exception e) {
throw new InvocationRuntimeException(e);
}
Context cx = Context.enter();
try {
Object xml = cx.getWrapFactory().wrap(cx, scope, xmlObject, XmlObject.class);
Scriptable jsXML = cx.newObject(scope, "XML", new Object[] { xml });
return jsXML;
} finally {
Context.exit();
}
}
/**
* Add the XML element name to use for an operation when converting from
* Java objects to XML.
*
* @param functionName
* @param elementQN
*/
public void addElementQName(String functionName, QName elementQN) {
function2ElementMap.put(functionName, elementQN);
}
}
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